Weil Mclain - Pressure Keeps Building

Joined
10 Jan 2011
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Location
Pennsylvania
Country
United Kingdom
Help : (

And thanks in advance!

OK, so over the last week the boiler's pressure keeps increasing to above 30, which causes the release valve (i believe thats then ame) releases the extra water and spits water into thee coffee can i have, and then some.

Whats weird (to me) is that I have the water from the city turned off right before the inlet valve, and have the inlet valve loosened as to not allow water to fast fill even if the valve from the city to the boiler was open or is leaking.

Also what i noticed, i think, is the expanison tank seems to be filling immediately. I have emtpited it twice in the last day and as soon as i turn the valve back on before the tank, it seems to fill right away.

Any help for trouble shooting and/or resolving would be greatly appreciated.

I can also post pics ifthat would be helpful.
 
I have attempted to empty the system to see if it keeps filling and it won't empty, for the last 20 minutes there has been a constant slow drain coming out of the boiler.
 
I am pretty sure i can hear water going through the inlet valve, i tried my best to put my ear up against it. I can hear a hissing sound, I am guessing is running water going through it.

The valve right before the inlet valve is turned off ,so not sure if i am hearing correctly.


Gonig to shut the main water off and see if it stops.
 
OK, shutting off the main has stopped both the inlet valve from making the slight hissing noise (water running through it) and when i opened the valve to drain the boiler, the slow drain stopped completely.

So, by doing this it seems i have discovered that both the valve before the inlet valve and the inlet valve are bad?

Reason i am thinking that is if the valve prior to the inlet valve is off, then no water should even be getting to the inlet valve.

And, with the inlet valve's top nut/screw thing completely loosened, it shouldn't allow any water to pass, correct?
 
This is a UK based site and we do things very differently on this side of the pond. :wink: :roll:

Assuming you really are from USA, I think you will get better help from Heating Help, which is a USA based forum.
 

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